Patents by Inventor Zhiguang Zhang

Zhiguang Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240170599
    Abstract: A silicon-based hetero-junction solar cell and a photovoltaic module and methods for making and using same. The cell includes an intrinsic amorphous silicon layer located on a surface of an N-type monocrystalline silicon wafer, a doped layer located on a surface of the intrinsic amorphous silicon layer, and a conductive film located on a surface of the doped layer. A metal electrode is arranged on the conductive film. The metal electrode includes a copper-based layer arranged on the conductive film and a tin layer coated on a surface of the copper-based layer. A low-temperature copper slurry is used instead of a low-temperature silver slurry, thereby greatly reducing preparation costs. Electroplating a layer of tin on a surface of the copper electrode can achieve good soldering with a tin-plated copper solder ribbon, protect the surface of the copper electrode, and increase electrode compactness to effectively improve the conductive performance.
    Type: Application
    Filed: November 17, 2023
    Publication date: May 23, 2024
    Inventors: Leizhen Hu, Huiguo Zhang, Silin Meng, Changrong Zhang, Zhiguang Zhang
  • Publication number: 20240136457
    Abstract: An anti-shading photovoltaic cell assembly and methods for making and using same. The assembly includes a cell layer with N cell strings connected in series. Each of the cell strings comprises M cell modules connected in series, and each of the cell modules comprises P solar cells connected in parallel. Each of the solar cells has a light-receiving surface, a rear surface, and a plurality of sides located between the light-receiving surface and the rear surface. The plurality of sides include a first side and an opposite second side. The first sides of the P solar cells in each of the cell modules are connected through a first solder ribbon, and the second sides of the P solar cells in each of the cell modules are connected through a second solder ribbon. Whereby, the light-receiving areas on front and back surfaces of the assembly are increased.
    Type: Application
    Filed: October 17, 2023
    Publication date: April 25, 2024
    Inventors: Leizhen Hu, Huiguo Zhang, Silin Meng, Changrong Zhang, Zhiguang Zhang
  • Publication number: 20230072807
    Abstract: A display panel includes: a transparent substrate with a display area including a light-emitting area and a non-light-emitting area; a light-emitting device on the transparent substrate, where the light-emitting device includes a first transparent electrode layer, a light-emitting functional layer and a second transparent electrode layer; the light-emitting functional layer includes light-emitting parts arranged in an array, and the light-emitting parts are in the corresponding light-emitting area; a driving structure between the transparent substrate and the light-emitting device, where the driving structure includes pixel circuits arranged in an array and a power supply line electrically connected to the pixel circuits to provide a power voltage, the pixel circuits are configured to drive the light-emitting parts to emit light; and orthographic projections of the pixel circuits and the power supply line on the transparent substrate are all located within an orthographic projection range of the non-light-emi
    Type: Application
    Filed: October 22, 2021
    Publication date: March 9, 2023
    Inventors: Lei FENG, Zhiguang ZHANG, Huatao LI, Jianhang FU
  • Publication number: 20220293710
    Abstract: A display substrate includes a plurality of pixel units arranged to form a plurality of pixel columns extending along a first direction, the display substrate further includes a plurality of groups of power source signal lines and pixel driving circuits located on the substrate, each group of power source signal lines includes a plurality of secondary signal lines, the pixel driving circuits of the pixel units in each pixel column are connected to different secondary signal lines in a same group of power source signal lines, each secondary signal line extends along the first direction from a starting end of the power source signal lines, extension lengths of the secondary signal lines in the same group of power source signal lines are different, and resistance values per unit length of different secondary signal lines along the first direction decrease as total lengths of the secondary signal lines increase.
    Type: Application
    Filed: December 17, 2021
    Publication date: September 15, 2022
    Inventors: Huatao LI, Zhiguang ZHANG, Lei FENG, Jianhang FU
  • Patent number: 11398190
    Abstract: A display driving method, a display driving device and a display module are provided. The display driving method includes: during each delay cycle, controlling a first light-emission control signal to be delayed by a predetermined duration from a second light-emission control signal, the predetermined duration corresponding to the delay cycle. The first light-emission control signal is a light-emission control signal outputted by each light-emission control line during an (n+1)-th frame of display time period in the delay cycle, and the second light-emission control signal is a light-emission control signal outputted by the corresponding light-emission control line during an n-th frame of display time period in the delay cycle. Each delay cycle includes N frames of display time periods, N is a positive integer greater than a first predetermined number, and n is a positive integer less than N.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 26, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Yong Yu, Zhiguang Zhang, Taehyun Kim, Chang Zhang
  • Patent number: 11335253
    Abstract: An optical compensation method for a display panel and an optical compensation device are provided. The optical compensation method for the display panel includes selecting a pixel block to be compensated in an edge region; and acquiring a pixel compensation parameter of at least one pixel block in a main body region as a pixel compensation parameter of the pixel block to be compensated.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 17, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Chang Zhang, Zhiguang Zhang
  • Publication number: 20210358419
    Abstract: A display driving method, a display driving device and a display module are provided. The display driving method includes: during each delay cycle, controlling a first light-emission control signal to be delayed by a predetermined duration from a second light-emission control signal, the predetermined duration corresponding to the delay cycle. The first light-emission control signal is a light-emission control signal outputted by each light-emission control line during an (n+1)-th frame of display time period in the delay cycle, and the second light-emission control signal is a light-emission control signal outputted by the corresponding light-emission control line during an n-th frame of display time period in the delay cycle. Each delay cycle includes N frames of display time periods, N is a positive integer greater than a first predetermined number, and n is a positive integer less than N.
    Type: Application
    Filed: August 30, 2018
    Publication date: November 18, 2021
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia SHEN, Yong YU, Zhiguang ZHANG, Taehyun KIM, Chang ZHANG
  • Publication number: 20210335223
    Abstract: An optical compensation method for a display panel and an optical compensation device are provided. The optical compensation method for the display panel includes selecting a pixel block to be compensated in an edge region; and acquiring a pixel compensation parameter of at least one pixel block in a main body region as a pixel compensation parameter of the pixel block to be compensated.
    Type: Application
    Filed: December 20, 2018
    Publication date: October 28, 2021
    Inventors: Lixia SHEN, Chang ZHANG, Zhiguang ZHANG
  • Patent number: 10810958
    Abstract: Embodiments of the present disclosure provide a display panel and a drive method thereof, and a display device. The display panel includes a plurality of sets of pixel columns and a plurality of drive circuits. Each of the sets of pixel columns includes a plurality of subpixel columns. The plurality of drive circuits correspond to the plurality of sets of pixel columns respectively. Each of the drive circuits is further configured to send, to an adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the drive circuit, and/or receive, from the adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the adjacent drive circuit and generate a data signal for driving the subpixel column in the set of pixel columns of the drive circuit, based on the received source data signal.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 20, 2020
    Assignees: CHENGDU OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Zhiguang Zhang, Chang Zhang, Yong Yu, Tae Hyun Kim
  • Patent number: 10777168
    Abstract: The disclosure discloses a display panel, a display device, and a method for adjusting a display image, the method includes: receiving a display mode switching instruction; obtaining a first brightness value of a first pixel in a display area in the first mode, and determining a second brightness value of the first pixel in a second mode to be switched to, wherein the display area includes a fingerprint recognition area, and an image display area surrounding the fingerprint recognition area, and the first pixel is in the image display area; determining a brightness compensation coefficient of the image display area in the second mode according to the first brightness value and the second brightness value; and switching from the first mode to the second mode, and displaying an image in the second mode after compensating for brightness in the image display area using the brightness compensation coefficient.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: September 15, 2020
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Guangguang Han, Zhiguang Zhang, Dehua Zhang
  • Patent number: 10665171
    Abstract: A method and a device for compensating for image crosstalk and a display apparatus are provided. The method includes: obtaining (S101) a data-voltage variation value between a data voltage applied to a pixel unit at a current scanning time instant and a data voltage applied to the pixel unit at a previous scanning time instant; determining a power-voltage variation value based on the data-voltage variation value (S102); setting a sum of the power-voltage variation value and an original data voltage to be applied to the pixel unit at a next time instant as a compensated data voltage of the pixel unit (S103); and setting the compensated data voltage of the pixel unit as an actual data voltage to be applied to the pixel unit at the next time instant (S104).
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: May 26, 2020
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiguang Zhang, Chang Zhang, Kwanggyun Jang, Lixia Shen
  • Publication number: 20200160814
    Abstract: The disclosure discloses a display panel, a display device, and a method for adjusting a display image, the method includes: receiving a display mode switching instruction; obtaining a first brightness value of a first pixel in a display area in the first mode, and determining a second brightness value of the first pixel in a second mode to be switched to, wherein the display area includes a fingerprint recognition area, and an image display area surrounding the fingerprint recognition area, and the first pixel is in the image display area; determining a brightness compensation coefficient of the image display area in the second mode according to the first brightness value and the second brightness value; and switching from the first mode to the second mode, and displaying an image in the second mode after compensating for brightness in the image display area using the brightness compensation coefficient.
    Type: Application
    Filed: August 9, 2019
    Publication date: May 21, 2020
    Inventors: Guangguang HAN, Zhiguang ZHANG, Dehua ZHANG
  • Patent number: 10553160
    Abstract: Embodiments of the present disclosure provide an OLED display panel and a driving method thereof. The OLED display panel includes a plurality of power lines, each power line connecting to a plurality of pixels, and one end of each power line connecting to a power source. The method includes acquiring a current value of the power line and comparing it to a preset threshold, when a current value of the power line is less than or equal to the threshold, providing an original data voltage to the pixels connected to the power line, when a current value of a power line is greater than the threshold, providing a compensating data voltage to the pixel connected to the power line. The compensating data voltage is equal to the difference between the original data voltage and the compensation voltage.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: February 4, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lixia Shen, Zhiguang Zhang, Chang Zhang, Yong Yu, Tae Hyun Kim
  • Publication number: 20200035174
    Abstract: Embodiments of the present disclosure provide a display panel and a drive method thereof, and a display device. The display panel includes a plurality of sets of pixel columns and a plurality of drive circuits. Each of the sets of pixel columns includes a plurality of subpixel columns. The plurality of drive circuits correspond to the plurality of sets of pixel columns respectively. Each of the drive circuits is further configured to send, to an adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the drive circuit, and/or receive, from the adjacent drive circuit, a source data signal for the subpixel column in the set of pixel columns of the adjacent drive circuit and generate a data signal for driving the subpixel column in the set of pixel columns of the drive circuit, based on the received source data signal.
    Type: Application
    Filed: August 31, 2018
    Publication date: January 30, 2020
    Inventors: Lixia SHEN, Zhiguang ZHANG, Chang ZHANG, Yong YU, Tae Hyun KIM
  • Publication number: 20200027400
    Abstract: A method and a device for compensating for image crosstalk and a display apparatus are provided. The method includes: obtaining (S101) a data-voltage variation value between a data voltage applied to a pixel unit at a current scanning time instant and a data voltage applied to the pixel unit at a previous scanning time instant; determining a power-voltage variation value based on the data-voltage variation value (S102); setting a sum of the power-voltage variation value and an original data voltage to be applied to the pixel unit at a next time instant as a compensated data voltage of the pixel unit (S103); and setting the compensated data voltage of the pixel unit as an actual data voltage to be applied to the pixel unit at the next time instant (S104).
    Type: Application
    Filed: April 11, 2018
    Publication date: January 23, 2020
    Applicants: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiguang ZHANG, Chang ZHANG, Kwanggyun JANG, Lixia SHEN
  • Publication number: 20190378457
    Abstract: Embodiments of the present disclosure provide an OLED display panel and a driving method thereof. The OLED display panel includes a plurality of power lines, each power line connecting to a plurality of pixels, and one end of each power line connecting to a power source. The method includes acquiring a current value of the power line and comparing it to a preset threshold, when a current value of the power line is less than or equal to the threshold, providing an original data voltage to the pixels connected to the power line, when a current value of a power line is greater than the threshold, providing a compensating data voltage to the pixel connected to the power line. The compensating data voltage is equal to the difference between the original data voltage and the compensation voltage.
    Type: Application
    Filed: November 23, 2017
    Publication date: December 12, 2019
    Inventors: Lixia SHEN, Zhiguang ZHANG, Chang ZHANG, Yong YU, Tae Hyun KIM
  • Patent number: 10484233
    Abstract: A virtual provider edge server may include different modules that implement a hybrid provider edge. A flow detection module may sample received traffic through a server and adaptively detect flows to be offloaded. An offloading module may be an SDN controller that controls the flow tables of a switch that data traffic is offloaded to.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: November 19, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Ying Cheng, Bo Yan, Zhiguang Zhang, Kenneth Duell
  • Patent number: 10460655
    Abstract: The present disclosure provides a gamma tuning method and a gamma tuning device. The gamma tuning method includes steps of: comparing grayscale binding points of a to-be-debugged module with a standard gamma curve; determining a to-be-tuned grayscale binding point from the grayscale binding points of the to-be-debugged module in accordance with a comparison result between the grayscale binding points of the to-be-debugged module and the standard gamma curve; and tuning a grayscale brightness value of the to-be-tuned grayscale binding point in accordance with a target brightness value of the grayscale binding point on the standard gamma curve.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: October 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Chang Zhang, Kwanggyun Jang, Jing Liu, Zhiguang Zhang, Hualing Yang
  • Patent number: D866563
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: November 12, 2019
    Inventor: Zhiguang Zhang
  • Patent number: D995660
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: August 15, 2023
    Inventor: Zhiguang Zhang